Wind Farm Stabilization by using DFIG with Current Controlled Voltage Source Converters Taking Grid Codes into Consideration

カテゴリ: 論文誌(論文単位)

グループ名: 【B】電力・エネルギー部門

発行日: 2012/03/01

タイトル(英語): Wind Farm Stabilization by using DFIG with Current Controlled Voltage Source Converters Taking Grid Codes into Consideration

著者名: Kenneth Eloghene Okedu (Department of Electrical and Electronic Engineering, Kitami Institute of Technology), S.M. Muyeen (Department of Electrical Engineering, The Petroleum Institute), Rion Takahashi (Department of Electrical and Electronic Engineering,

著者名(英語): Kenneth Eloghene Okedu (Department of Electrical and Electronic Engineering, Kitami Institute of Technology), S.M. Muyeen (Department of Electrical Engineering, The Petroleum Institute), Rion Takahashi (Department of Electrical and Electronic Engineering, Kitami Institute of Technology), Junji Tamura (Department of Electrical and Electronic Engineering, Kitami Institute of Technology)

キーワード: voltage source converter，doubly fed induction generator (DFIG)，grid fault，grid codes，wind energy，stability

要約(英語): Recent wind farm grid codes require wind generators to ride through voltage sags, which means that normal power production should be re-initiated once the nominal grid voltage is recovered. However, fixed speed wind turbine generator system using induction generator (IG) has the stability problem similar to the step-out phenomenon of a synchronous generator. On the other hand, doubly fed induction generator (DFIG) can control its real and reactive powers independently while being operated in variable speed mode. This paper proposes a new control strategy using DFIGs for stabilizing a wind farm composed of DFIGs and IGs, without incorporating additional FACTS devices. A new current controlled voltage source converter (CC-VSC) scheme is proposed to control the converters of DFIG and the performance is verified by comparing the results with those of voltage controlled voltage source converter (VC-VSC) scheme. Another salient feature of this study is to reduce the number of proportionate integral (PI) controllers used in the rotor side converter without degrading dynamic and transient performances. Moreover, DC-link protection scheme during grid fault can be omitted in the proposed scheme which reduces overall cost of the system. Extensive simulation analyses by using PSCAD/EMTDC are carried out to clarify the effectiveness of the proposed CC-VSC based control scheme of DFIGs.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.132 No.3 （2012）

本誌掲載ページ: 251-259 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/132/3/132_3_251/_article/-char/ja/